Here’s the article

http://www.westword.com/news/pot-laws-in-states-that-border-colorado-life-in-prison-for-selling-a-joint-7369650

The  issue raises a whole number of cross border ( state line issues)

If enforcement carries on in the same way in the bordering states tax payers will be funding the incarceration of  an increased amount of people where they actually be earning money from the sale of the commodity to fund education.